gh-153062: Add a critical section to tee_copy_impl

Author: tonghuaroot

Modules/itertoolsmodule.c

@@ -1028,8 +1028,10 @@ tee_copy_impl(teeobject *to)
     if (newto == NULL) {
         return NULL;
     }
+    Py_BEGIN_CRITICAL_SECTION(to);
     newto->dataobj = (teedataobject *)Py_NewRef(to->dataobj);
     newto->index = to->index;
+    Py_END_CRITICAL_SECTION();
     newto->weakreflist = NULL;
     newto->state = to->state;
     PyObject_GC_Track(newto);